Incrustation-preventive



UNITED STATES PATENT GFFIQE.

JOHN B. SOWASH AND GARDNER V. WRIGHT, OF PATTERSON, IOWA.

INCRUSTATION-PREVENTIVE.

SPECIFICATION forming part of Letters Patent No. 230,903, dated August 10, 1880.

Application filed December 27, 1879.

To all whom it may concern:

Be it known that we, JOHN B. SOWASH and GARDNER V. WRIGHT, of Patterson, in the county of Madison and State of Iowa, have invented a new and Improved Compound for Removing Incrustations from the Inside of Boilers, of which the following is a specification.

The object of our invention is to save material and expense, facilitate the labor, and diminish the dangers incident to the use of ammonia, petroleum, sweet-oil, lardoil, and sugar for preventing and removing incrustation in steam-boilers.

Heretofore the salts of ammonia has been used to accomplish the results contemplated but its power to corrode metal and its tendency to make the water in the boiler foam and rise to fill the tubes and cover the valves cause danger of explosion and damage when used by a novice.

To regulate the power and action of ammonia, and to assure safety in the use of it in boilers, animal fats and oils and various other materials may be combined with it; and to produce a cheap, safe, and effective compound, we mix the following ingredients in the proportions stated, viz: One-fourth ounce of chloride ofammonium, five-eighths ounce of sweetoil,one-halfouuce of lard-oil, one-half ounce of Virginia black oil or petroleum residuum, one-half ounce of sugar.

By placing these ingredients together in a bottle or other suitable vessel the sugar and chloride of ammonium will be dissolved, and the Whole will become a liquid compound that can be readily poured into a boiler. The half of the above-named quantity is suflicient for one application tothe boiler of a forty-horsepower engine, and one application every week is sufficient for the most difficult cases. The

quantity to be applied and the number of applications must be governed in all cases by the capacity of the boiler and the quality of the water used in the boiler. Small boilers and good water will require less material and fewer applications than large boilers and impure water.

ment and calcareousmatter found in the water from adhering to the boiler and formingscales and crust; but sweet-oil is much more costly than lard-oil, and we therefore add lard-oil to our composition to reduce the cost of the oils required in our compound.

Petroleum penetrates the scale on the boiler more readily than sweet-oil and lard-oil, but is more costly than Virginia black oil or petroleum residuum, and we therefore use the Virginia black oil or petroleum residuum in our compound, in place of petroleum, to accomplish the result and to save expense.

Sugar aids in clarifying the water in the boiler by gathering impurities in a scum on the surface of the water, and thereby helps to prevent the formation of scale on the boilersurface, and by so doing diminishes the quantity of ammonium and other ingredients required and the cost of our complete compound.

Anyquantity ofonr compound can be readily prepared of the ingredients named in the proportions and manner stated, and readily and safely applied, as set forth, by novices as well as by experts, to more effectually prevent and remove scales and crusts in boilers, and at less expense than with any other material or com- JOHN B. SOWASH. GARDNER V; WRIGHT.

Witnesses:

BUTLER BIRD, D. T. Mines. 

